1,3,6,2-Oxadiazaphosphonine, octahydro-3-(2-chloroethyl)-2-hydroxy-, 2-oxide 158401-52-6 3-(2-Chloroethyl)-2-hydroxy-1,3,6,2-oxadiazaphosphonane 2-oxide Octahydro-3-(2-chloroethyl)-2-hydroxy-1,3,6,2-oxadiazaphosphonine 2-oxide